package cn.flightfeather.thirdapp.common.net
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import android.accounts.NetworkErrorException
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import cn.flightfeather.thirdapp.model.bean.BaseResponse
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import io.reactivex.Observer
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import io.reactivex.disposables.Disposable
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import retrofit2.Response
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import java.net.ConnectException
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import java.net.UnknownHostException
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import java.util.concurrent.TimeoutException
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/**
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* @author riku
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* Date: 2019/4/24
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* RxJava2 网络请求返回处理
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*/
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abstract class ResultObserver<T>:Observer<Response<T>> {
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override fun onSubscribe(d: Disposable) {
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if (!d.isDisposed) {
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onRequestStart()
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}
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}
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override fun onNext(response: Response<T>) {
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getPageInfo(response)
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onRequestEnd()
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if (response.isSuccessful) {
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try {
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onSuccess(response.body())
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} catch (e: Exception) {
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e.printStackTrace()
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}
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} else {
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try {
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onInnerCodeError(response.code(), response.message())
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onCodeError(response.code(), response.message())
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onFailure(Throwable(), false)
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} catch (e: Exception) {
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e.printStackTrace()
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}
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}
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}
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override fun onError(e: Throwable) {
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onRequestEnd()
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try {
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if (e is ConnectException
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|| e is TimeoutException
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|| e is NetworkErrorException
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|| e is UnknownHostException
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) {
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onFailure(e, true)
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} else {
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onFailure(e, false)
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}
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} catch (e1: Exception) {
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e1.printStackTrace()
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}
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}
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override fun onComplete() = Unit
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private fun getPageInfo(response: Response<T>) {
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var currentPage = -1
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var totalPage = -1
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try {
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val body = response.body()
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if (body is BaseResponse<*>) {
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currentPage = body.head?.page ?: -1
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totalPage = body.head?.totalPage ?: -1
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}
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} catch (e: Exception) {
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e.printStackTrace()
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}
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onPage(currentPage, totalPage)
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}
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/***********自定义回调方法***********/
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/**
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* 请求开始
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*/
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open fun onRequestStart() = Unit
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/**
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* 获取到分页信息
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*/
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open fun onPage(current: Int, total: Int) = Unit
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/**
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* 请求结束
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*/
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open fun onRequestEnd() = Unit
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/**
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* 网络请求返回成功，但code错误
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*/
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open fun onInnerCodeError(code: Int, message: String) = Unit
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/**
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* 提供网络请求返回错误代码时的自定义处理方法
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*/
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open fun onCodeError(code: Int, message: String) = Unit
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/**
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* 请求成功
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*/
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@Throws(Exception::class)
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abstract fun onSuccess(result: T?)
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/**
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* 请求失败
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*/
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@Throws(java.lang.Exception::class)
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abstract fun onFailure(e: Throwable, isNetWorkError: Boolean)
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}
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